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Issue 4, 2015
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Concentration-dependent and light-responsive self-assembly of bolaamphiphiles bearing α-cyanostilbene based photochromophore

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Abstract

In this paper, a new bolaamphiphile bearing 1-cyano-1,2-bis(phenyl)ethene (CNBE) has been synthesized. The self-assembly of this molecule in aqueous solution is concentration-dependent. Two distinct morphologies, monomolecular layered lamellas and helical nanofibres have been obtained with the as-prepared molecular configuration. Note worthily, the helical nanofibres provide an experimental evidence for the pure twisted structure in the liquid crystals, which is theoretically proposed by De Gennes. Due to the photoisomerization of CNBE, the self-assembled nanostructures undergo morphological changes upon irradiation. Although various nanostructures were observed in the solution-state, only nanofibres were obtained after the solution was cast on a substrate, which was attributed to a strong dewetting effect. This work illustrates concentration-dependent and light-responsive self-assembly and provides a novel avenue for fabricating smart soft materials.

Graphical abstract: Concentration-dependent and light-responsive self-assembly of bolaamphiphiles bearing α-cyanostilbene based photochromophore

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Publication details

The article was received on 30 Oct 2014, accepted on 25 Nov 2014 and first published on 26 Nov 2014


Article type: Paper
DOI: 10.1039/C4SM02392G
Soft Matter, 2015,11, 798-805

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    Concentration-dependent and light-responsive self-assembly of bolaamphiphiles bearing α-cyanostilbene based photochromophore

    Y. Jin, Y. Xia, S. Wang, L. Yan, Y. Zhou, J. Fan and B. Song, Soft Matter, 2015, 11, 798
    DOI: 10.1039/C4SM02392G

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